Rope making machine



Oct. 6, 1936. A. KRAFT ROPE MAKING MACHINE Filed Dec. 21, 1934 v Jiavzahr:

Fatented Oct. 6, 1936 J. S I

ROPE MAKING MACHINE Anton Kraft, Olpe, Germany Application December 21, 1934, Serial No. 758,598

In Germany November 1, 1934 4 Claims (Cl. 117-16) This invention relates to a high-speed rope making machine, comprising a winding frame locked in position of 'rest in the rotary fiyer and with a mechanism for pulling and winding the ,5 rope, in which the material provided with a preliminary twist is closed by the closing die before entering the machine by two rope lays continually neutralizing each other during each rotation of the fiyer, whereas the rope is pulled forward along this fiyer and fed in opposite direction to the winding drum into the winding frame over a pulley rotatably mounted on the flyer and changing the direction of the rope. In the hitherto used machines of this type the lit pulley for changing direction of rope has a groove designed to enable a free untwisting of the rope material when passing over this pulley, said groove consisting of two mutually displaced rollers. If the material to be twisted is of thin metal wire or fibrous material, as is frequently employed for the production of small healds, it happens, that the thin heald, when passing over the pulley, cannot turn the rollers, with the result that the backward turning of the material takes place not at all or only partly, whereby undesirable, prejudicial tensions and distortions are imparted to the material during the twisting.

This inconvenience is overcome by the invention in that an arrangement is made, by which the roping material when passing over the pulley,

for changing direction of rope is positively turned backwards, so that the rope is uniformly twisted. The invention therefore represents an important improvement in the art of rope making.

The rope rolls in oblique direction to the plane of rotation of the pulley for changing direction of rope so that it must carry out one back twist in the sense of the direction in which the fiyer turns while running over a portion of the pulley corresponding to two lay lengths. The pulley for changing direction of rope has a rolling surface which is domed from the middle towards both sides in order to conduct the rope over the pulley, in left-side or right-side oblique position according to the direction of the rotation of the fiyer.

.The angle of obliquity determined'by the thickness of the rope and the number of back turnings necessary for one half rotation of. the pulley is adjusted by a'nozzle which guides the rope and which is shiftably mounted on the fiyer disc closest to the pulley. I

An embodiment of the invention is illustrated byway of example in the accompanying drawing,

in which:

, Fig, 1 shows the machine in front elevation.

Fig. 2 shows a constructional detail in medial longitudinal section.

Fig. 3 is a cross section on line IIIIII of Fig. 1, partly in elevation.

Fig. 4 shows the rope reversing pulley viewed 5 from the bearing bracket on the right of Fig. 1.

The fiyer consisting of the discs 3, t, 5 and 6 and of the connecting rods 1, rotates in the bearing brackets i and 2, the winding frame 8 for the drawing mechanism 9 and the winding drum l0 it) being locked in its position of rest in this fiyer.

v A belt pulley ii is mounted on one side of the machine and a closing die l2 on the other side, the laying plate l3 feeding the several wires to the closing die being arranged outside'the ma- 15 chine proper. The rope i l, after being closed with a suitable preliminary twist in the closing die 52, is conducted through the hollow shaft ii in the bracket 6 and thence over the pulley l6 mounted on the fiyer-disc i, .along the flyer parvallel to the axis of rotation thereof and its direction of travel is reversed when running over a. pulley ll between the fiyer discs 5 and 6, whereupon the rope is drawn into the winding frame 8 where it is finally wound on the drum l8 over 25 the heald arrangement 19. v

A spur wheel 20, fixed on the fiyer-disc 3', meshes with a. transmission wheel 2i of similar diameter-keyed on theshaft, of a spur wheel 23 which drives the hollow shaft rigidly connected 30 with the closing die l2. The ratio of transmission of the wheels 2!], ill, 22 and 24 is such that the closing die l2, during one rotation of the fiyer, rotates twice in the same direction as the flyer, thus producing two rope twists. v 35 The pulley- I1 for changing direction of rope is rotatably mounted in the arms 25 which connect the fiyer-discs 5 and 6. On the opposite side of the axis of rotation of .the flyer'counter-weights '21 are mounted'on rods 26, and also connect the 40 fiyer-discs 5 and 6. The counter-weights 21 are of such dimensions and mounted in such a manner, that they counterbalance the turning moment of the pulleyll for changing direction of rope and of the arms 25 and rope guiding ele- 45- ments'. The perfectly balanced flyer can therefore rotate, at uniform speed and free from vibration. r

The surface 'ofthe pulley H for changing direction of rope is domed towardsfboth sides 5 from the middle, i. e.from therunning off side of the rope forming the extension of the axis of rotation of the fiyer, so that it appears to be composed-of two juxtaposed discs'which are each I one deeper atthe middle andascending as con- 55 ration of the pulley I! has in practice proved to be very practical. The radius of curvature R corresponds preferably to approximately the diameter of the useful surface of the pulley. Whereas the rope runs off of the middle of the pulley l1 into the winding frame by the preliminary drawing it runs on to this pulley at one side thereof. For adjusting the oblique position of the rope 14 whilst running over the pulley I! a slot 29 parallel to the axis of the pulley I1 is provided in the flyer-disc at the height of the rope passing through the same, a nozzle 28 for guiding the rope being shiftably mounted on this slot. The angle of the obliquity is deter-' mined by the thickness of the rope I! on the one hand and by the number of backward twists necessary during one half rotation of the pulley l1.

' The two twists imparted to the rope i4 laid in the closing jaw at every rotation of the rotary body are continually neutralized by two similarly directed-back twists transmitted to the laying point. The one distortion of the rope takes place when it comes out of the hollow shaft l5 at point 30, and is freely transmitted as a back twist directly to the laying point, so that it is only necessary to neutralize the distortion which takes place asthe rope enters the winding frame 8 at the point 3|. In order to attain this, the rope llconducted along the flyer must turn once about its axis in the same direction as the rotation of the fiyer at every rotation of the rotary body. Consequently the rope, in running off over the reversing pulley must twist in the direction in which the fiyer rotates as many times as the number of lay lengths on the path of travel. These turnings are then freely transmitted as twists up to the laying point. The

similarly directed distortion of the rope corresponding to one rotation of the fiyer is obtained, while the rope is running over the pulley by the oblique direction "of the rope, the nozzle 23 being shifted to the one half of the pulley or to the other half of the same according to the direction of rotation of the flyer.

If the flyer rotates for example in the clockdirection, viewed from the bearing block 2,

and if the portion 'of the rope on the pulley I! has eight turnlengths, therope, in running over from the pulley, must carry out four twists in clockwise direction, viewed from the bearing If, however, the flyer rotates in opposite direction, the running rope running on to the pulley l'l must be brought into the oblique position, indicated in dashlines by means of the nozzle 28. The nozzle 28 shown. by way of example consists of a hollow, detachably fixed screw.

I claim: v 1. A high speed rope making machine, com- "prising in combination a machine frame, a flyer journalled in said frame andconsisting of four discs connectedby rods, a winding frame locked in position of rest within said flyer, a closing die on the outer side of said machine frame on the feed end. of the machine and adapted to lay the rope prior to its entrance into the machine, a guide pulley on the second disc from the feed end of the machine adapted to guide the rope laid by said closing die, a reversing pulley carried by the third and fourth flyer discs and adapted to change the direction of travel of the rope and feed the same to said winding frame, and means for guiding the rope over said revers- 2,056,470 vex surfaces towards the sides. Such configuing pulley obliquely to the plane of rotation of said pulley, said reversing pulley having an annularly. grooved face .defining annularly bulged portions adapted to cause the rope to roll laterally thereon to impart a back twist in the direction of rotation of the flyer while a length of rope equal to two rope lays is running over the pulley.

2. A high speed roping machine, comprising in combination a machine frame, a flyer journalled in saidframe and composed of four discs connected by rods a winding drum locked in position of rest with said flyer, a closing die on the outer side of said machine frame on the feed end of the machine and adapted to lay the rope prior to its entrance into the machine, a guide pulley on the second disc from the feed end of the machine adapted to guide the rope laid by said closing die, a reversing pulley carried by the third and fourth discs and adapted to guide the rope obliquely to the direction of rotation of the pulley to changethe direction of travel of the rope and feed same to Said .winding frame, the face of said reversing pulley being domed from the middle towards both sides, to cause the rope to roll thereon in the direction of rotation of said flyer, the third flyer disc from the feed end of the machine having a slot serving as passage for the rope, a nozzle shiftably mounted in the slot in said third flyer disc arranged parallel to the axis of rotation of said reversing pulley and adapted to conduct said rope to alter the angle of obliquity of the rope on said pulley. K

3. A high speed rope making machine, comprising in combination a machine frame, a flyer 'ournalled in said frame and consisting of four discs connected by rods, a winding frame locked in position of rest within said flyer, a closing die on the outer side of said machine frame on the feed end of the machine and adapted to lay the rope prior to its entrance into the machine, a guide pulley on the second disc from the feed end of the machine adapted to guide the roperied by the third and fourth flyer discs and.

adapted to change the direction of travel of the rope and feed the same to. said winding frame,

and means for guiding the rope over said revers ing pulley obliquely to the plane of rotation'of said pulley, said pulley having a face domed from the middle towards both sides to causethe rope to rollthereon in the direction of rotation of the iiyer when running obliquely over the pulley.

4. A high speed rope making'machine, com prising intcombination a machine frame, a ijlyer journalledin said frame and consisting of, four discs connected by rods, a winding frame locked in position of rest within said fiyer, a closing die on the outer side of said machine frame on the feed end of the machine and adapted today the rope prior to its entrance into the machine, a guide pulley on the, second disc from'the feed end of the machine adapted to guide the rope ,rope and feed the same to saidwinding frame,

and means for guiding the rope over said reversing pulley obliquely to the plane of rotation of said pulley, said pulley having a face formed by recessed bulged portions of similar width extendingfroni the middle and the side edges of" the pulley. I 1 

